Safety in milling
Subtitle: Magma Copper Co. Superior, Ariz.
By: by Allen D. Look and Ernest R. Rodriguez.
Contributors: Rodriguez, Ernest R.; United States. Bureau of Mines.
Series: Information circular (United States. Bureau of Mines) -- 7623
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1951
Place of publication: Washington, DC
Language: eng
Notes: 1